RE: Help with fixing a cracked case Novarossi P5
Its time to buy a new ngine, that crank block is shot.
If you can, you might be able to find a bare block from NovaRosi or on-line. But once you do that, you might as well rplace the whol thing since there you mighjt have to also relace the piston and sleeeve. (The piston & sleeve are disposabl anyways, those are always replaced in a rebuild. Or, if you plase, you could transplat thm into the new block and replace them when they finally wear out.)